以下是引用片段：

ERROR 1005 (HY000): Can't create table './dbname/tablename.frm' (errno: 150)

以下是引用片段：

show innodb status;

或者：

以下是引用片段：

LATEST FOREIGN KEY ERROR
------------------------
081210 11:57:40 Error in foreign key constraint of table dbname/tablename:
foreign key (`gid`, `uid`) references `table2`(`gid`, `uid`)
) ENGINE = InnoDB:
Cannot find an index in the referenced table where the
referenced columns appear as the first columns, or column types
in the table and the referenced table do not match for constraint.
Note that the internal storage type of ENUM and SET changed in
tables created with >= InnoDB-4.1.12, and such columns in old tables
cannot be referenced by such columns in new tables.
See http://dev.mysql.com/doc/refman/5.0/en/innodb-foreign-key-constraints.html
for correct foreign key definition.